Micro Contact Angle

Exponential Business and Technologies Company

Bridging You and Nano

Micro Contact Angle

Using a high speed camera, powerful optics and a unique picoliter to nanoliter droplet dispensing system enables contact angle measurements of micron sized surfaces and features. Micro contact angle measurement is great for fibers, micro patterns and surfaces too small for conventional contact angle analysis. The technique makes it possible for characterizing transient and dynamic liquid-solid interaction such as vaporization and condensation.

Typical Experimental Results:

micro contact angle

Micro contact angle measurements on a single particle (left) and a metal post (right).

Applications:

5µm, 30µm and 50µm Capillaries	60 Frame per Second Capture Speed	Coating Uniformity
Controlled Light Source	Correction of Curvature	Dynamic Micro Contact Angle
Fibers	Hydrophobicity/Hydrophilicity	Individual Powder Particles
Lotus Effect	MEMS Devices	Nano/Micro Patterned Surfaces
Nanoliter (nL) to Picoliter (pL) Size Droplets	Oleophobicity/Oleophilicty	Pressure Driven Liquid Dispenser
Slider Heads	Stents	Surface Chemistry
Surface Contamination	Water Repellant Fibers	Wettability

For more information please read our application notes.

Instruments: Kyowa MCA-3 Micro Contact Angle Meter

Key Specifications:

Resolution	0.1°
Measure Range	0-180°
Drop Size	pL - nL
Image Capture Device	CCD Camera at 60 FPS
Analysis Method	Half angle, circle, ellipse, tangent
Maximum Sample Size	35x25x5mm
Working Distance	33mm